Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR022098 |
The Role of Frozen Soil in Groundwater Discharge Predictions for Warming Alpine Watersheds | |
Evans, Sarah G.1; Ge, Shemin2; Voss, Clifford I.3; Molotch, Noah P.4,5 | |
2018-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:3页码:1599-1615 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate warming may alter the quantity and timing of groundwater discharge to streams in high alpine watersheds due to changes in the timing of the duration of seasonal freezing in the subsurface and snowmelt recharge. It is imperative to understand the effects of seasonal freezing and recharge on groundwater discharge to streams in warming alpine watersheds as streamflow originating from these watersheds is a critical water resource for downstream users. This study evaluates how climate warming may alter groundwater discharge due to changes in seasonally frozen ground and snowmelt using a 2-D coupled flow and heat transport model with freeze and thaw capabilities for variably saturated media. The model is applied to a representative snowmelt-dominated watershed in the Rocky Mountains of central Colorado, USA, with snowmelt time series reconstructed from a 12 year data set of hydrometeorological records and satellite-derived snow covered area. Model analyses indicate that the duration of seasonal freezing in the subsurface controls groundwater discharge to streams, while snowmelt timing controls groundwater discharge to hillslope faces. Climate warming causes changes to subsurface ice content and duration, rerouting groundwater flow paths but not altering the total magnitude of future groundwater discharge outside of the bounds of hydrologic parameter uncertainties. These findings suggest that frozen soil routines play an important role for predicting the future location of groundwater discharge in watersheds underlain by seasonally frozen ground. |
英文关键词 | seasonally frozen ground snowmelt groundwater coupled modeling alpine |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430364900011 |
WOS关键词 | COLORADO FRONT RANGE ; SPATIALLY DISTRIBUTED SNOWMELT ; CLIMATE-CHANGE IMPACTS ; ENERGY-TRANSPORT ; UNITED-STATES ; NIWOT RIDGE ; FLOW ; PERMAFROST ; CATCHMENT ; SURFACE |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20124 |
专题 | 资源环境科学 |
作者单位 | 1.Appalachian State Univ, Dept Geog & Environm Sci, Boone, NC 28608 USA; 2.Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA; 3.US Geol Survey, 345 Middlefield Rd, Menlo Pk, CA 94025 USA; 4.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 5.Univ Colorado, Dept Geog, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Evans, Sarah G.,Ge, Shemin,Voss, Clifford I.,et al. The Role of Frozen Soil in Groundwater Discharge Predictions for Warming Alpine Watersheds[J]. WATER RESOURCES RESEARCH,2018,54(3):1599-1615. |
APA | Evans, Sarah G.,Ge, Shemin,Voss, Clifford I.,&Molotch, Noah P..(2018).The Role of Frozen Soil in Groundwater Discharge Predictions for Warming Alpine Watersheds.WATER RESOURCES RESEARCH,54(3),1599-1615. |
MLA | Evans, Sarah G.,et al."The Role of Frozen Soil in Groundwater Discharge Predictions for Warming Alpine Watersheds".WATER RESOURCES RESEARCH 54.3(2018):1599-1615. |
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